Update app.py

app.py

@@ -39,7 +39,7 @@ def imageprepare(argv,Single):
         if (nheight == 0):  # rare case but minimum is 1 pixel
             nheight = 1
             # resize and sharpen
-        img = im.resize((20, nheight), Image.ANTIALIAS).filter(ImageFilter.SHARPEN)
+        img = im.resize((20, nheight), Image.Resampling.LANCZOS).filter(ImageFilter.SHARPEN)
         wtop = int(round(((28 - nheight) / 2), 0))  # calculate horizontal position
         newImage.paste(img, (4, wtop))  # paste resized image on white canvas
     else: